The display of the PST gives you information presented in plain words - in required language. You can choose between 10 different languages including English, German, Italian, Chinese, Finnish, Swedish, French, Spanish, Dutch, and Portuguese, on the PST display, you get all the information you need to set up, adjust and trouble-shoot. This makes the PST extremely easy to handle and reduces the risk of misinterpretations.

At any time, you can read output current, output voltage, number of starts, total run time and motor temperature on the display. if a fault should occur, this also indicated on the LCD. The fault messages are presented in clear text in the selected language.

Four button keypad

The PST employs the same basic user concept as today's advanced mobile telephones. Using the four buttons on the keypad, you can easily adjust your own start and stop profile and motor protection functions for any type of application.  There are standard settings for many common applications including pumps, conveyors, fans, mixers and compressors for quick and easy set up.

You can also set the advanced warning parameters to allow potential problems to be identified before real problem occur . A password protection function is available to prevent unauthorized changes to the programming.

Starting several motors
You can store as many as three different starting parameter sets for optimal sequence start of three different motors. You can use this function for two or three speed motors as well.

Integrated advanced motor protection
Inside the PST Softstarter, You will find useful features for advanced motor and  Softstarter protection, including ; programmable overload protection, high currernt, underload, phase imbalance, phase reversal, thyristor overload protection, and by-pass monitoring to ensure proper by-pass operation

Programmable signal relays
All PST units have three programmable signal relays where each relay can signal run, Top of ramp or event. The event setting can be used to signal protections, faults and warnings. The supervisory functionally but also phase loss and out of frequency range.

Integrated by-pass contactor

on the larger sizes (PSTB 370....PSTB1050), there is an ABB AF contactor integrated. This gives you advantages in terms of cost - saving, space saving and last but not least energy saving. With a by-pass contactor you can reduce the power  losses during normal run by 90% or more .
The smaller units, PST30 up to PST300, which are not equipped with a built - in by pass contactor, have an extra set of three terminals on the line side. The terminals are marked B1, B2 and shall be used when connecting an external by-pass contactor. This will enable the integrated protection functions also when the Softstarter is by-passed.

The PST Softstarter has a built in interface on the front for connection of the ABB Fieldbusplug communication. Through this interface it is possible to control the Softstarters, achieve status information, up - and down load of parameters . in the interface between the Softatarter and  the Fieldbusplugi is always the same. independently of PST softstarter size of delivery date it is possible to connect to any fieldbus protocoal later on since this is defineed in the fieldbusplug itself. As a start, AS-interface, DeviceNet and Profibus DP are available. To connect the PST Softstarter  to a fieldbus system.

PSTB1050  With integrated by - pass contactor.